- The revolving door was invented in 1888.
- The number Pi (the ratio of the circumference to the diameter of a circle) can't be expressed as a fraction, making it an irrational number. It never repeats and never ends when written as a decimal..
- You burn more calories sleeping than watching television.
- The past tense for the English word 'dare' is 'durst'.
- In 1642 French mathematician Blaise Pascal invented the mechanical calculator..
advertisement
  reload more facts | visit cool facts
add this widget to your website
|